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CC2340R5: Central sometimes there is no response when starting the Notification function of FFF1, but the callback is executed successfully.

Ryan Li
Intellectual 480 points
Part Number: CC2340R5

Tool/software:

CCS version : 12.7.0

SDK version : 7.40.00.64

Example project : basic_ble

When I was testing the Notification function of CC2340 as the characteristic value (FFF1) of the Central startup peripheral device, I sometimes failed to read the 0x2902 of FFF1 after startup.


The picture on the left shows the monitoring window when the data cannot be read. The "check_method" array is used to store the "method" from the peripheral device during the connection. "fff1_noti_rsp" stores the return value of GATT_ReadCharValue(). 
The picture on the right shows that most of the returned values ​​can be successfully read.



PS. Notification has been enabled for FFF1 of the peripheral device, and it has been confirmed that Bluetooth connection and communication can be used normally.

  • 0
    TI__Mastermind 42150 points

    Hi,

    Thank you for reaching out. Can you verify if this same behavior is seen in the 8.10 SDK? Several fixes and improvements have been made as part of the SDK release which may have an impact on the behavior you are seeing.

    Best Regards,

    Jan